Merge branch 'cleanup/io-pci' into next/cleanups

From Rob Herring <robherring2@gmail.com>:

This is the 2nd part of mach/io.h removals. This series removes io.h on
platforms with PCI by creating a fixed virtual I/O mapping and a common
__io() macro.

This version has changed a bit to accommodate Tegra converting its PCIe
host to a platform driver. Now the virtual space is only reserved during
early boot before .map_io() is called. The mapping is not created until
calling pci_ioremap_io which can be done at any point after vmalloc is
initialized.

I've gone back to fixed 64K windows for each PCI bus. This allows
removing all the i/o resource setup from the individually platforms and
placing it within the common ARM PCI code.

I've only tested versatilepb under qemu (with the model hacked up to
actually enable i/o space), so any testing is appreciated. iop3xx and
mv78xx0 have some risk of breaking as the PCI bus addresses are moved
to 0 from matching the cpu host bus addesss.

* cleanup/io-pci:
  ARM: iop3xx: use fixed PCI i/o mapping
  ARM: mv78xx0: use fixed pci i/o mapping
  ARM: iop13xx: use fixed PCI i/o mapping
  iop13xx: use more regular PCI I/O space handling
  ARM: orion5x: use fixed PCI i/o mapping
  ARM: kirkwood: use fixed PCI i/o mapping
  ARM: dove: use fixed PCI i/o mapping
  ARM: footbridge: use fixed PCI i/o mapping
  ARM: shark: use fixed PCI i/o mapping
  ARM: integrator: remove trailing whitespace on pci_v3.c
  ARM: integrator: use fixed PCI i/o mapping
  ARM: tegra: use fixed PCI i/o mapping
  ARM: versatile: use fixed PCI i/o mapping
  ARM: move PCI i/o resource setup into common code
  ARM: Add fixed PCI i/o mapping
  i2c: iop3xx: use standard gpiolib functions
  i2c: iop3xx: clean-up trailing whitespace

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 14 insertions, 29 deletions

diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index 47921b0cdc65..355332d502cb 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -26,9 +26,8 @@ struct pcie_port {
 	u8			root_bus_nr;
 	void __iomem		*base;
 	spinlock_t		conf_lock;
-	char			io_space_name[16];
 	char			mem_space_name[16];
-	struct resource		res[2];
+	struct resource		res;
 };
 
 static struct pcie_port pcie_port[2];
@@ -53,24 +52,10 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
 
 	orion_pcie_setup(pp->base);
 
-	/*
-	 * IORESOURCE_IO
-	 */
-	snprintf(pp->io_space_name, sizeof(pp->io_space_name),
-		 "PCIe %d I/O", pp->index);
-	pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0;
-	pp->res[0].name = pp->io_space_name;
-	if (pp->index == 0) {
-		pp->res[0].start = DOVE_PCIE0_IO_PHYS_BASE;
-		pp->res[0].end = pp->res[0].start + DOVE_PCIE0_IO_SIZE - 1;
-	} else {
-		pp->res[0].start = DOVE_PCIE1_IO_PHYS_BASE;
-		pp->res[0].end = pp->res[0].start + DOVE_PCIE1_IO_SIZE - 1;
-	}
-	pp->res[0].flags = IORESOURCE_IO;
-	if (request_resource(&ioport_resource, &pp->res[0]))
-		panic("Request PCIe IO resource failed\n");
-	pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
+	if (pp->index == 0)
+		pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE0_IO_PHYS_BASE);
+	else
+		pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE1_IO_PHYS_BASE);
 
 	/*
 	 * IORESOURCE_MEM
@@ -78,18 +63,18 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
 	snprintf(pp->mem_space_name, sizeof(pp->mem_space_name),
 		 "PCIe %d MEM", pp->index);
 	pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0;
-	pp->res[1].name = pp->mem_space_name;
+	pp->res.name = pp->mem_space_name;
 	if (pp->index == 0) {
-		pp->res[1].start = DOVE_PCIE0_MEM_PHYS_BASE;
-		pp->res[1].end = pp->res[1].start + DOVE_PCIE0_MEM_SIZE - 1;
+		pp->res.start = DOVE_PCIE0_MEM_PHYS_BASE;
+		pp->res.end = pp->res.start + DOVE_PCIE0_MEM_SIZE - 1;
 	} else {
-		pp->res[1].start = DOVE_PCIE1_MEM_PHYS_BASE;
-		pp->res[1].end = pp->res[1].start + DOVE_PCIE1_MEM_SIZE - 1;
+		pp->res.start = DOVE_PCIE1_MEM_PHYS_BASE;
+		pp->res.end = pp->res.start + DOVE_PCIE1_MEM_SIZE - 1;
 	}
-	pp->res[1].flags = IORESOURCE_MEM;
-	if (request_resource(&iomem_resource, &pp->res[1]))
+	pp->res.flags = IORESOURCE_MEM;
+	if (request_resource(&iomem_resource, &pp->res))
 		panic("Request PCIe Memory resource failed\n");
-	pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
+	pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset);
 
 	return 1;
 }
@@ -210,7 +195,7 @@ static void __init add_pcie_port(int index, unsigned long base)
 		pp->root_bus_nr = -1;
 		pp->base = (void __iomem *)base;
 		spin_lock_init(&pp->conf_lock);
-		memset(pp->res, 0, sizeof(pp->res));
+		memset(&pp->res, 0, sizeof(pp->res));
 	} else {
 		printk(KERN_INFO "link down, ignoring\n");
 	}